Fastening for casement-windows, fan-lights, or the like.



No. 747,776. 'PATENTED DEG.22,1903..

0. ROSENHEIM.

FASTENING FOR CASEMENT WINDOWS, FANLIGHTS, OR THE LIKE. APPLICATIONFILED FEB. 10, 1903.

N O MODEL. 3 SHEETS-SHEET 1.

| l l u No. 747,776. --'-"PATENTED:DEG.22,1903.1

' o. ROSENHBIM. FASTENING-FOR CASEMENT WINDOWS, FANLIGHTS, OR THE LIKE.

APPLICATION IILBD FEB. 10, 1903.

K0 MODEL.

a SHEETS-SHEET 2.

Wzwxqm' fizz/022 077 In: NORRIS PETERS c0. PHpTO-LIYHQ. wnsumcmu n c No;747,77 PATENTED DEG. 22,-190s..

- c. ROSIENHBIM.

FASTENING FOR GASEMENT WINDOWS, PANLIGHTS, OR THE LIKE.

APPLICATION I'ILE15 FEB. 10., 1903.

no MODEL. 3 snnnws-snzfl s.

' UN TE STATES rammed December 22, 1903.

l PATENT OFFICE. I

FASTENING FOR CASEMENT-WIliDOWS, FAN-LIGHTS, OR LIKE.

SPECIFIC ATION forming part of Letters Patent No. 747,776, datedDecember 22, 1903. Application filed February 10, 1903- Serial No.142,792. (No 'model.)

To all whom it may concern:

Be it known that I, CHARLES ROSENHEIM, manufacturer, a subject of theEmperor of Germany, residing at Brussels, in the Kingdom of Belgium,have invented certain new and useful Improvements in Fastenings forCasement-Windows, Fan-Lights, or the Like, of which the following-is aspecification.

This invention relates to an improved fastening apparatus forcasement-windows, fanlights, and the like, the object of which is topermit such windows or the like to be closed and firmly secured inposition within their frames and released therefromand opened by twosuccessive pulls on a cord, chain, wire,

or the like easily accessible for convenient,

manipulation.

This apparatus essentially comprises a double ratchet-Wheel, one ofwhich may be called the driving ratchet-wheel and the second the camlikeratchet-wheel, the driving ratchet-wheel being provided with a number ofteeth double of the number of teeth of the cam-like ratchet-Wheel. Thedriving ratchetwheel is rotated the value of one tooth at each pull onthe cord, chain, or the like, while simultaneously the teeth of the camlike ratchet-wheel cause a lever to be oscillated or alternately raisedor lowered, the said lever being combined with a suitably-shaped hookadapted to engage withasimilar-shaped hook connected to the window orlike framework.

Referring to the annexed drawings, Figure 1 is a front View of theapparatus in its position at the moment of the opening or closing of theWindow or fan-light. Fig. 2 is a front view, partially in section,showing the interior of the apparatus. Fig. 3 is a section taken on lineA A of Fig. 2. Fig. tis a horizontal section taken on line B B of Fig.2. Fig. 5 is a diagrammatic view showing a fanlight in its openedposition. Figs. 6 and 7 are illustrations showing the operation of aportion of the device.

In the casing 1, fixed to the window or fanlight movable portion 2, ismounted an axle or spindle 3, the ends whereof project beyond the sidesof the casing 1 and receive the forked ends of a suitably-shaped hook 4,adapted to engage with a hook 5, connected to the windew-framework 6when the window is to be .maintained in its closed position.

' cam-like ratchet-wheel 9.

shown in Fig. 3.

On the axle 3 is mounted in the casing 1 a pawl 7, pressed by means of aspring 8 on a The said ratchetwheel ,is combined with a secondratchetwheel10,.hereinafter called the driving ratchet-wheel, providedwith a number of teeth double to that of the ratchet-wheel 9.

ssf

These two ratchet-wheels are loosely mount- 1 ed on an axle'll, passingthrough the casing 1 and provided inside the said casing with an arm 12,to which is pivoted a pawl 13, adapted to engage with the teeth of theratchet-wheel 10. The said axle 11 is further provided outside thecasing 1 with a lever 14, to which is attached the cord or chain 15,actuating the window or fan-light. The axle 11 is subjected to theaction of a spring 16, rengaging automatically the-paw1 13 with onetooth of the ratchet-Wheel 10 when the lever hasbeen raised in thedirection of the arrow 17, Fig. 3.

The displacements of lever 14 in the direction of the arrow 17 and inthe oppositedirection are limited by two shoulders 18 and 18, providedon said lever and adapted to bear against the plate 19 of the apparatus,the shoulder l8 acting when the lever 14 is displaced in the directionof the arrow 17 under the action of a pull on the cord 15 and theshoulder 18 when said lever is returned in the opposite direction underthe action of the spring 16.

The apparatus may be combined with a sash-lever 20, mounted on a pivot21, subjected to the action of a spring 22. The displacement of the saidsash-lever is limited at the moment of the opening of the window by aidofashoulder 23, hearing against the lateral wall of the casing 1. thewindow is in its opened position, is brought in the path of themanipulating-lever 14, thus preventing the rotation of said lever, andconsequently as long the window This shoulder 23, when remains in itsopened position preventing the weight of the window to unduly strain thespring 16, acting on the lever 14..

The actuating-cord 1 5 is attached at they end of the lever 14 and isconducted on suit-- able rollers 24, so as to be accessible forconvenient manipulation.

The apparatus acts as follows: The window or fan-light being in itsclosed position, the hook 4 is in engagement Withthe hook 5, as The pawl7 then rests in the space between two consecutive teeth of theratchet-wheel 9. At the moment when a first pullis exerted on the cordthe lever14 is rotated in the direction of the arrow 17, andconsequently also the axle 11, which, putting the spring 16 undertension, causes the driving ratchet-wheel 10 to advance or rotate thevalue of one tooth by means of the pawl 13. The cam-like ratchet-wheel9, forming only one piece with the ratchet-wheel 10, is also rotated andacts by one of its teeth on the pawl 7, which israised (as shown indotted lines, Fig. 3) and held by a notch on the end of the tooth of theratchet-wheel 9. The pawl 7 is consequently held in its raised position.The raising of the pawl7 has caused the axle 3 to be partially rotated,and the hook 4: has consequently been disengaged from the hook 5. Thecasement-window or the like is consequently free to move and falls intoits opened position, this movement being facilitated by the action ofthe sashlever 20 on the framework 6. As soon as the pull on the cord 15is released the lever 14 is returned by the spring 16in its originalposition, in which the shoulder 18 rests against the plate 19.Simultaneously the pawl 13 is engaged by the next tooth of theratchetwheel 10. At the moment when a second pull is exerted on the cord15 the window is first returned toits closed position. Then the lever1-1 is again rotated, causing a new partial rotation of theratchet-wheel 10. At the moment when a second pull is exerted on thecord 15 the window is first returned to its closed position. Then thelever 14 is again rotated, causing a new partial rotation of theratchet-wheel 10. Consequently on account of the relation existingbetween the teeth of the driving ratchet-wheel 9 and of the camlikeratchet-wheel 10 the pawl 7 falls again into the space comprised betweentwo consecutive teeth of the ratchet-wheel 9, and as a result the hook4D is again brought in engagement with the book 5, thus holding firmlythe casementwindow or the likein its closed position. The same operation(opening or closing) will take place alternately at each pull on thecord 15.

It is obviously not necessary to combine the sash-lever directly withthe apparatus, the use of said lever in itself being well known and itslocation being possible at any suitable place. Its location, as shown onthe drawings, with its axle or pivot 21 situated on one side of themiddle line of the apparatns and the end of the arm 20 on the other sideof said middle line, has the special advantage of balancing the. strainson the movable framework, and of thus avoiding any deformation of saidframework.

Having thus described my invention, what I claim is 1. An improvedfastening apparatus of the kind described comprisinga cam-likeratchetwheel, a driving ratchet-wheel having a number of teeth double ofthat of the cam-like ratchet-wheel a hook acted upon by the camlikeratchet-wheel and means for rotating partially the drivingratchet-wheel, the partial rotation of the driving ratchet-wheel causingthe hook to be alternately raised and lowered by the cam-likeratchet-wheel substantially as'described.

2. An improved fastening apparatus of the kind described comprising acam-like ratchetwheel, a drivingratchet-wheel havinganumber of teethdouble of that of the cam-like ratchet-wheel and rigidly connected tosaid cam-like ratchet-wheel, a spring-actuated pawl engaging with theteeth of the cam-like ratchet-wheel, a hook connected to said pawl andadapted to engage with a similar hook and means forrotating partiallythe driving ratchet-wheel so as to cause the pawl and the hook connectedthereto to be raised at a first partial rotation of the drivingratchetwheel and lowered at a second partial rotation of said drivingratchet-wheel, substantially as described.

3. An improved fastening apparatus of the kind describedcomprisingasuitable casing, an axle 11 extending outside the casing, anactuating-lever 14 mounted on said axle, a double ratchet-wheel looselymounted on said axle and comprising a driving ratchet-wheel 10 and acam-like ratchet-wheel 9 the driving ratchetwheel having a number ofteeth double of that of the cam-like ratchet-wheel, an arm 12 mounted onsaid axle 11, a pawl 13 carried by said arm and engaged with the teethof the driving ratchet-wheel, a second pawl 7 acted upon by the cam-likeratchetwheel, an axle 3carrying said pawl, said axle extending outsidethe casing and a hook 4, mounted on said axle substantially asdescribed.

4. An improved fastening apparatus of the kind described comprising acasing 1 an axle 11 extending outside the casing, an actuatinglever 14mounted on said axle, the said lever being provided with two shoulders18, 18 limiting its displacements, a double ratchetwheel loosely mountedon said axle and comprising a driving ratchetwheel 10 and a camlikeratchet-wheel 9, the driving ratchetwheel having a number of teethdouble of that of the cam-like ratchet-wheel, an arm 12 mounted on theratchet-wheehearrying axle 11, a pawl 13 carried by said arm and engagedwith the teeth of the driving ratchetwheel, a second pawl 7 acted uponby the cam-like ratchet-wheel, an axle 3 carrying said pawl, a hook amounted on said pawlcarrying axle, a sash-lever 20 provided with ashoulder 23 and a spring 2 actuating said sash-lever substantially asdescribed.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

CHARLES ROSENHEIM.

\Vitnesses:

Gnoue BEDE, GREGORY PHELAN.

